Improvement in hydraulic apparatus



I P. F. POWERS. Improvement in Hydraulic Apparatus. N0. 114,339.Patenied May 2,1371

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JMPIIUW-UT/MGRAP/VIL 60.17.). 05501915 5 PROCES UNITED STATES PATENTOFFICE.

PHINEAS FRANKLIN POWERS, OF GENOA, NEVADA.-

IMPROVEMENT lN HYDRAULIC APPARATUS.

Specification forming part of Letters Patent No. 1 14,339, dated May 2,1871.

10 all whom it may concern Be it known that I, PHINEAS FRANKLIN POWERS,of Genoa, in the county of Douglas and State of Nevada, have invented anew and Improved Hydraulic Engine; and I do hereby declare that thefollowing is a full, clear, and exact description thereof, which willenable others skilled in the art to make and use the same, referencebeing had to the accompanying drawing, forming part of thisspecification, in which-- Figure 1 represents a side view of my improvedhydraulic engine. Fig. 2 is a plan or top view of the same.

Similar letters of reference indicate corresponding parts.

This invention relates to a new apparatus for operating the inlet andexhaust valves of all kinds of hydraulic engines, with a view ofobtaining absolute exactness in their operation.

The invention consists in the use of a reciprocating rack, which is, bytoothed segments or pinions, connected with the pivots of the severalvalves, so as to operate them all at once.

A B in the drawing are the two cylinders of a double-acting engine orpump. 0 D are the pistons in the same. They are connected by a rod, 9,to move simultaneously.

The cylinder A is provided with the inletvalve on and outlet-valve I),while the cylinder B has the inlet-valve c and outlet-valve 0?. Each ofthese valves is made in form of a plate or disk, turning on a verticalarbor. The upper end of each valve-arbor carries a toothed segment orpinion, 0.

E is a longitudinal bar, arranged to slide on the two cylinders, a pin,j, which projects from the rod g, passing through a slot of the same.The ends of the bar E are provided with double racks, as shown in Fig.2, to mesh into the pinions of the inlet and outlet valves,respectively.

The operation is as follows: When the pistons have moved in thedirection of the arrow shown in Fig.2 the pin f has, at the end of thestroke, carried the bar E in the same direction, thereby causing therack h to open the valve 1), while the racki closes the valve a, and therack j opens 01, while 7c closes c, the position of the several valvesbeing'so indicated by dotted lines in Fig. 2. The valves are thereby setto let the course of the pistons be reversed, and will remain so untilthe end of the next stroke has been reached, when the valves 1) and dwill be closed, while a and c are opened, to again reverse the motion ofthe pistons.

The pinions e or segments are sufliciently small to let the action ofthe racks upon the valves be rapid, so that they will be moved only atthe very end of each stroke.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- The slide E, carrying the quadruple rack for settingsimultaneously the inlet and outlet valves of two cylinders,substantially as herein shown and described.

PHINEAS FRANKLIN POWERS.

Witnesses JAs. W. SMALL, FRED. FURTH.

